Function kwsysProcess_AddCommand

Source/kwsys/ProcessWin32.c:549–642

}

int kwsysProcess_AddCommand(kwsysProcess* cp, char const* const* command)
{
  int newNumberOfCommands;
  wchar_t** newCommands;

  /* Make sure we have a command to add.  */
  if (!cp || !command || !*command) {
    return 0;
  }

  /* Allocate a new array for command pointers.  */
  newNumberOfCommands = cp->NumberOfCommands + 1;
  if (!(newCommands =
          (wchar_t**)malloc(sizeof(wchar_t*) * newNumberOfCommands))) {
    /* Out of memory.  */
    return 0;
  }

  /* Copy any existing commands into the new array.  */
  {
    int i;
    for (i = 0; i < cp->NumberOfCommands; ++i) {
      newCommands[i] = cp->Commands[i];
    }
  }

  if (cp->Verbatim) {
    /* Copy the verbatim command line into the buffer.  */
    newCommands[cp->NumberOfCommands] = kwsysEncoding_DupToWide(*command);
  } else {
    /* Encode the arguments so CommandLineToArgvW can decode
       them from the command line string in the child.  */
    char buffer[32768]; /* CreateProcess max command-line length.  */
    char* end = buffer + sizeof(buffer);
    char* out = buffer;
    char const* const* a;
    for (a = command; *a; ++a) {
      int quote = !**a; /* Quote the empty string.  */
      int slashes = 0;
      char const* c;
      if (a != command && out != end) {
        *out++ = ' ';
      }
      for (c = *a; !quote && *c; ++c) {
        quote = (*c == ' ' || *c == '\t');
      }
      if (quote && out != end) {
        *out++ = '"';
      }
      for (c = *a; *c; ++c) {
        if (*c == '\\') {
          ++slashes;
        } else {
          if (*c == '"') {
            // Add n+1 backslashes to total 2n+1 before internal '"'.
            while (slashes-- >= 0 && out != end) {
              *out++ = '\\';
            }